// Copyright 2010 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.android.apps.moderator;

import android.view.Menu;
import android.view.MenuItem;
import android.view.MenuItem.OnMenuItemClickListener;

public abstract class RefreshableActivity extends ModeratorActivity {
  
  @Override
  public boolean onPrepareOptionsMenu(Menu menu) {
    if (!super.onPrepareOptionsMenu(menu)) {
      return false;
    }
    //'Refresh' menu item
    MenuItem refresh = menu.add(R.string.refresh);
    refresh.setIcon(R.drawable.ic_menu_refresh);
    refresh.setOnMenuItemClickListener(new OnMenuItemClickListener() {

      public boolean onMenuItemClick(MenuItem item) {
        refresh();
        return false;
      }
    });
    return true;
  }

  /**
   * Each Activity extends this method to refresh its own display, possibly in
   * response to a user request.
   */
  abstract void refresh();
}
